dobenour authored Jan 05, 2017 and Ben Gamari committed Jan 10, 2017

This enables subsections-via-symbols (-dead_strip) by default on Darwin.
The Static Reference Table (SRT) needs to be split in order for
-dead_strip to be helpful, so this commit always splits it on Darwin
systems.

Test Plan: GHC CI on Darwin

Reviewers: erikd, austin, bgamari

Reviewed By: erikd, bgamari

Subscribers: erikd, thomie

Differential Revision: https://phabricator.haskell.org/D2911

GHC Trac Issues: #11040, #13049